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OpenAdvisories
High · 8.1 Public exploit CVE-2026-56876 EUVD-2026-39812GHSA-jmr9-qjv8-65gv

extract-zip unvalidated symlink path traversal

Published Jun 26, 2026 · Updated Jun 30, 2026 · Assigned by cisa-cg

Description

extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory. Depending on how extract-zip is used, an attacker could read or write to arbitrary files.

Affected products

VendorProductAffectedFixed
max-mapper extract-zip — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 node-extract-zip No fix yet —
Debian 13 node-extract-zip No fix yet —
Debian 12 node-extract-zip No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 node-extract-zip No fix yet —
Ubuntu 26.04 LTS node-extract-zip No fix yet —
Ubuntu 25.10 node-extract-zip No fix yet —
Ubuntu 24.04 LTS node-extract-zip No fix yet —
Ubuntu 22.04 LTS node-extract-zip No fix yet —
ReleasePackageFixed inAdvisory
RHEL 10 rh-podman-desktop 1.1.2-1.el10_2 RHSA-2026:57590
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed heroic-games-launcher 2.22.0-4.1 openSUSE-SU-2026:11200-1

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
npm extract-zip <= 2.0.1 — GHSA-jmr9-qjv8-65gv

Advisories 3

References

  • url third-party-advisory
  • url third-party-advisory
  • url vdb-entry